drm: lindent the drm directory.

I've been threatening this for a while, so no point hanging around.
This lindents the DRM code which was always really bad in tabbing department.
I've also fixed some misnamed files in comments and removed some trailing
whitespace.

Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/drivers/char/drm/i915_drv.h b/drivers/char/drm/i915_drv.h
index 70ed4e6..511ef1d 100644
--- a/drivers/char/drm/i915_drv.h
+++ b/drivers/char/drm/i915_drv.h
@@ -101,18 +101,18 @@
 
 				/* i915_dma.c */
 extern void i915_kernel_lost_context(drm_device_t * dev);
-extern void i915_driver_pretakedown(drm_device_t *dev);
-extern void i915_driver_prerelease(drm_device_t *dev, DRMFILE filp);
-extern int i915_driver_device_is_agp(drm_device_t *dev);
+extern void i915_driver_pretakedown(drm_device_t * dev);
+extern void i915_driver_prerelease(drm_device_t * dev, DRMFILE filp);
+extern int i915_driver_device_is_agp(drm_device_t * dev);
 
 /* i915_irq.c */
 extern int i915_irq_emit(DRM_IOCTL_ARGS);
 extern int i915_irq_wait(DRM_IOCTL_ARGS);
 
 extern irqreturn_t i915_driver_irq_handler(DRM_IRQ_ARGS);
-extern void i915_driver_irq_preinstall(drm_device_t *dev);
-extern void i915_driver_irq_postinstall(drm_device_t *dev);
-extern void i915_driver_irq_uninstall(drm_device_t *dev);
+extern void i915_driver_irq_preinstall(drm_device_t * dev);
+extern void i915_driver_irq_postinstall(drm_device_t * dev);
+extern void i915_driver_irq_uninstall(drm_device_t * dev);
 
 /* i915_mem.c */
 extern int i915_mem_alloc(DRM_IOCTL_ARGS);
@@ -125,7 +125,6 @@
 extern long i915_compat_ioctl(struct file *filp, unsigned int cmd,
 			      unsigned long arg);
 
-
 #define I915_READ(reg)          DRM_READ32(dev_priv->mmio_map, reg)
 #define I915_WRITE(reg,val)     DRM_WRITE32(dev_priv->mmio_map, reg, val)
 #define I915_READ16(reg) 	DRM_READ16(dev_priv->mmio_map, reg)